Initial checkin for logging.
Resolved conflict in analyze.py
Added utils.py to hold print_mixing stats
Added logging stuff to analyze-dataset.py
More logger
More logger
Removed verbose
Added setup.py etc.
removed verbose one place in yank.py to make test run.
Updated gitignore to ignore version.py, swapped the timeseries module to use pymbar in analyze-dataset.
Merge pull request #17 from kyleabeauchamp/logging

[WIP] Convert prints to loggers